Implement /w wiki routes
Implement /w wiki routes

Preparing for the implementation of rudimentary wiki functionality.
Have to say I don't really like how pathprefix works. The root path is
badly handled in this case. I might implement some hard-coded 301s for
those, or just... shrug and ignore them.

Also, I'm going to need pretty printed errors for 404s and 50xs soon.
Need to think about the structure of those.

tummychow/goose,tummychow/goose